On the basis of fully considering magnetic coupling between the short-circuit windings, the mathematical model of aninduction motor with stator winding inter-turn short-circuit fault in the three-phase stationary coordinate system was established firstly, thena simplified fault model in the two-phase stationary coordinate system was obtained by the coordinate transformation, finally the motorstator current spectrum was analyzed and simulated by using extended Park’ vector method. Simulation results verified the correctness andvalidity of the induction motor model with stator inter-turn short-circuit fault.